TWI503012B - Method and apparatus for generating a radio link control protocol data unit for multi-carrier operation - Google Patents
Method and apparatus for generating a radio link control protocol data unit for multi-carrier operation Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H—ELECTRICITY
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- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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Description
相關應用的交叉引用 Cross-reference to related applications
本申請案要求於2009年4月24日提出的美國臨時申請案No.61/172,499的權益，並在此作為參考文獻整體引述。 The present application claims the benefit of U.S. Provisional Application No. 61/172,499, filed on Apr. 24, 2009, which is hereby incorporated by reference.
本申請案與無線通信有關。 This application relates to wireless communications.
在無線發射/接收單元(WTRU)和UMTS陸地無線電存取網路(UTRAN)中的無線鏈結控制(RLC)實體可以在透明模式(TM)、未確認模式(UM)或確認模式(AM)下操作。UM RLC實體和TM RLC實體可以被配置為傳輸RLC實體或接收RLC實體。傳輸RLC實體傳輸RLC協議資料單元(PDU)，接收RLC實體接收RLC PDU。AM RLC實體包括傳輸側和接收側。AM RLC實體的傳輸側傳送RLC PDU而AM RLC實體的接收側接收RLC PDU。 The Wireless Link Control (RLC) entity in the Wireless Transmitting/Receiving Unit (WTRU) and the UMTS Terrestrial Radio Access Network (UTRAN) may be in Transparent Mode (TM), Unacknowledged Mode (UM) or Acknowledged Mode (AM) operating. The UM RLC entity and the TM RLC entity may be configured to transmit an RLC entity or receive an RLC entity. The transmitting RLC entity transmits an RLC Protocol Data Unit (PDU), and the receiving RLC entity receives the RLC PDU. The AM RLC entity includes a transmission side and a reception side. The transmitting side of the AM RLC entity transmits the RLC PDU and the receiving side of the AM RLC entity receives the RLC PDU.
第1A和1B圖分別顯示了傳統UM和AM RLC PDU格式。序號欄位指示RLC PDU的序號。長度指示符欄位被用來指示在RLC PDU中的每一個RLC服務資料單元(SDU)末端的最後八位元組(octet)。RLC SDU或RLC SDU的分段被映射到資料欄位。 Figures 1A and 1B show the traditional UM and AM RLC PDU formats, respectively. The sequence number field indicates the sequence number of the RLC PDU. The length indicator field is used to indicate the last octet of the end of each RLC Service Data Unit (SDU) in the RLC PDU. Segments of the RLC SDU or RLC SDU are mapped to the data field.
傳統地，在網路經由無線電資源控制(RRC)信令配置的上行鏈路中(UL)，AM RLC實體可以產生具有固定尺寸的RLC PDU。類似地，UM RLC實體可以從有限配置的尺寸的集合中選擇RLC PDU尺寸。 Traditionally, in the uplink (UL) configured by the network via Radio Resource Control (RRC) signaling, the AM RLC entity can generate RLC PDUs of fixed size. Similarly, a UM RLC entity can select an RLC PDU size from a set of finitely configured sizes.
在第三代合作夥伴計畫(3GPP)版本7中，RLC協議已經被擴展到支援在下行鏈路(DL)中靈活的RLC PDU的尺寸，但在UL中不支援。在3GPP版本8中，在UL中也允許靈活的RLC PDU，使得AM和 UM RLC實體被允許在UL上創建具有靈活尺寸的RLC PDU。 In the 3rd Generation Partnership Project (3GPP) Release 7, the RLC protocol has been extended to support the size of flexible RLC PDUs in the downlink (DL), but is not supported in UL. In 3GPP Release 8, flexible RLC PDUs are also allowed in the UL, making AM and The UM RLC entity is allowed to create RLC PDUs with flexible dimensions on the UL.
網路可以在無線發射/接收單元(WTRU)中配置上行無線電載體，以產生具有在最小RLC PDU尺寸和最大RLC PDU尺寸之間的靈活尺寸的RLC PDU，其中最大和最小尺寸由RRC層配置。更具體地，WTRU可以分割及/或序連上行RLC SDU以創建大於或者等於最小UL RLC PDU尺寸並小於或者等於最大UL RLC PDU尺寸的RLC PDU。如果將被傳輸的資料不夠大以致於不足以創建最小UL RLC PDU尺寸的RLC PDU，則RLC實體可以創建小於最小UL RLC PDU尺寸的AM PDU。這免去了在可用資料的量小於最小UL RLC PDU尺寸的情況下的填充需求。 The network may configure the uplink radio bearer in a wireless transmit/receive unit (WTRU) to generate RLC PDUs having a flexible size between a minimum RLC PDU size and a maximum RLC PDU size, where the maximum and minimum sizes are configured by the RRC layer. More specifically, the WTRU may partition and/or sequence the uplink RLC SDUs to create RLC PDUs that are greater than or equal to the minimum UL RLC PDU size and less than or equal to the maximum UL RLC PDU size. If the data to be transmitted is not large enough to create a minimum UL RLC PDU size RLC PDU, the RLC entity may create an AM PDU that is smaller than the minimum UL RLC PDU size. This eliminates the need for padding where the amount of available data is less than the minimum UL RLC PDU size.
為了最大化傳輸效率，RLC PDU的尺寸應當與將被允許在目前傳輸時間間隔(TTI)內通過空氣介面為給定的邏輯頻道而被傳輸的位元數目匹配。這提高了傳輸效率並極大地減少了層2(L2)的標頭開銷。 In order to maximize transmission efficiency, the size of the RLC PDU should match the number of bits that will be allowed to be transmitted through the air interface for a given logical channel within the current transmission time interval (TTI). This improves transmission efficiency and greatly reduces the header overhead of Layer 2 (L2).
在目前3GPP規範下，RLC實體可以基於從媒體存取控制(MAC)實體為給定的邏輯頻道請求的位元數目而在給定的傳輸時機創建RLC PDU。RLC實體選擇RLC PDU的資料欄位的尺寸來匹配由MAC實體為特定邏輯頻道請求的資料。通過這種選擇，RLC實體需要等到傳輸時機來從MAC實體獲取資訊，因此，一些潛伏問題會出現。 Under current 3GPP specifications, an RLC entity may create an RLC PDU at a given transmission opportunity based on the number of bits requested from a Media Access Control (MAC) entity for a given logical channel. The RLC entity selects the size of the data field of the RLC PDU to match the data requested by the MAC entity for a particular logical channel. With this choice, the RLC entity needs to wait until the transmission opportunity to get information from the MAC entity, so some latency problems arise.
或者，RLC實體可以創建比在即將到來的TTI被傳輸的RLC PDU更多的RLC PDU。這種選擇緩和了處理需求，因為這在RLC PDU的創建與其包含在MAC PDU中之間有效地創建了延遲。RLC PDU的尺寸基於根據目前的授權、被排程或非排程而允許被傳輸的位元的數目。 Alternatively, the RLC entity may create more RLC PDUs than the RLC PDUs transmitted in the upcoming TTI. This choice mitigates processing requirements as it effectively creates a delay between the creation of the RLC PDU and its inclusion in the MAC PDU. The size of the RLC PDU is based on the number of bits that are allowed to be transmitted according to current authorization, scheduled or non-scheduled.
為了進一步提高無線系統的流通量，在3GPP中考慮了多載波操作。在多載波操作中，WTRU和節點B可以經由多個載波傳輸和接收。 In order to further increase the throughput of wireless systems, multi-carrier operation is considered in 3GPP. In multi-carrier operation, the WTRU and Node B can transmit and receive via multiple carriers.
靈活的RLC PDU創建目前處理經由單載波傳輸RLC PDU的情況。發明人已經認識到，在多載波操作 時，WTRU會選擇經由多載波在給定的TTI中傳輸多於一個MAC PDU。由於頻道條件、可用功率和授權在載波中可能不相同，因此需要用於多載波的靈活的RLC PDU創建的技術。 Flexible RLC PDU creation currently handles the case of transmitting RLC PDUs over a single carrier. The inventors have recognized that in multi-carrier operation The WTRU may choose to transmit more than one MAC PDU in a given TTI via multiple carriers. Since channel conditions, available power, and grants may not be the same in the carrier, a technique for flexible RLC PDU creation for multiple carriers is needed.
揭露了用於多載波操作的有效確定RLC PDU尺寸和靈活的RLC PDU創建的裝置和方法。在一個實施方式中，WTRU被配置為計算允許在目前TTI中為多個載波中的每一個傳輸的最大資料量，並選擇RLC PDU資料欄位尺寸以使得將被多工到MAC PUD的每一個RLC PDU與為該載波計算的最大資料量中的最小值匹配。最大資料量的計算可以基於例如，目前TTI的針對每個載波的可應用目前授權。在用於特定邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或者等於目前TTI的載波的可應用目前授權所允許傳輸的最大資料量中的最小值的4N倍的情況下，可以產生用於之後TTI的RLC PDU，其中N為被啟動載波的數目。最大資料量可以基於在每一個載波上的最大剩餘功率來計算。 Apparatus and methods for efficiently determining RLC PDU size and flexible RLC PDU creation for multi-carrier operation are disclosed. In one embodiment, the WTRU is configured to calculate a maximum amount of data allowed to be transmitted for each of the plurality of carriers in the current TTI, and select an RLC PDU data field size such that each of the MAC PUDs will be multiplexed The RLC PDU matches the minimum of the maximum amount of data calculated for that carrier. The calculation of the maximum amount of data may be based, for example, on the current applicable authorization of the current TTI for each carrier. In the case where the amount of data in the outstanding pre-generated RLC PDU for a specific logical channel is less than or equal to 4N times the minimum value of the maximum amount of data allowed to be transmitted by the current TTI carrier, An RLC PDU for the subsequent TTI is generated, where N is the number of enabled carriers. The maximum amount of data can be calculated based on the maximum remaining power on each carrier.
CRNC、130‧‧‧控制無線電網路控制器 CRNC, 130‧‧‧Control Radio Network Controller
PDU‧‧‧協定資料單元 PDU ‧ ‧ agreement data unit
SRNC、140‧‧‧服務無線電網路控制器 SRNC, 140‧‧‧Serving Radio Network Controller
UTRAN‧‧‧陸地無線電存取網路 UTRAN‧‧ terrestrial radio access network
RLC‧‧‧無線鏈結控制 RLC‧‧‧Wireless Link Control
TTI‧‧‧傳輸時間間隔 TTI‧‧‧ transmission time interval
MAC‧‧‧媒體存取控制 MAC‧‧‧Media Access Control
WTRU、110‧‧‧無線發射/接收單元 WTRU, 110‧‧‧ wireless transmitting/receiving unit
115、125‧‧‧處理器 115, 125‧‧‧ processor
116、126‧‧‧接收器 116, 126‧‧‧ Receiver
117、127‧‧‧發射器 117, 127‧‧‧ transmitter
118、128‧‧‧記憶體 118, 128‧‧‧ memory
119、129‧‧‧天線 119, 129‧‧‧ antenna
120‧‧‧節點B 120‧‧‧Node B
150‧‧‧核心網路 150‧‧‧core network
400‧‧‧產生RLC PDU的示例過程 400‧‧‧Example process for generating RLC PDUs
從下面的描述可以獲得更為詳細的理解，其通過結合所附圖式的例子的方式來給出；第1A圖和第1B圖分別為示出了傳統的UM和AM RLC PDU格式的格式圖；第2圖為顯示了包括多個WTRU、節點B、控制無線電網路控制器(CRNC)、服務無線電網路控制器(SRNC)和核心網路的無線通信系統的方塊圖； 第3圖為第2圖的無線通信系統的WTRU和節點B的功能方塊圖；第4圖為根據一個實施方式的用於產生RLC PDU的示例過程的流程圖。 A more detailed understanding can be obtained from the following description, which is given by way of example in the accompanying drawings; FIG. 1A and FIG. 1B are respectively a format diagram showing the conventional UM and AM RLC PDU formats. 2 is a block diagram showing a wireless communication system including a plurality of WTRUs, Node Bs, a Control Radio Network Controller (CRNC), a Serving Radio Network Controller (SRNC), and a core network; 3 is a functional block diagram of a WTRU and a Node B of the wireless communication system of FIG. 2; and FIG. 4 is a flow chart of an exemplary process for generating an RLC PDU, according to an embodiment.
當參考下文時，技術術語“WTRU”包括但不限定為使用者設備(UE)、移動站、固定或移動用戶單元、尋呼機、行動電話、個人數位助理(PDA)、電腦、感測器、機器對機器(M2M)裝置或能夠在無線環境下操作的任何其他類型的裝置。當參考下文時，技術術語“基地台”包括但不限定為節點B、站點控制器、存取點(AP)或能夠在無線環境下操作的任何其他類型的介面裝置。當參考下文時，技術術語“載波”和“頻率”可以被交換使用和應當知道不同的系統可以使用不同的技術術語，例如在3GPP長期演進(LTE)中的“分量載波”。 When referring to the following, the technical term "WTRU" includes but is not limited to user equipment (UE), mobile station, fixed or mobile subscriber unit, pager, mobile phone, personal digital assistant (PDA), computer, sensor, machine. A machine (M2M) device or any other type of device capable of operating in a wireless environment. When referring to the following, the technical term "base station" includes, but is not limited to, a Node B, a site controller, an access point (AP), or any other type of interface device capable of operating in a wireless environment. When referring to the following, the technical terms "carrier" and "frequency" may be used interchangeably and it should be appreciated that different systems may use different technical terms, such as "component carrier" in 3GPP Long Term Evolution (LTE).
儘管實施方式是參考與3GPP高速封包存取(HSPA)相關的控制頻道和資料頻道來揭露的，應當注意實施方式並不限於3GPP HSPA，而是可應用到目前存在的或在未來將被發展的任何無線通信技術，包括但不限定於3GPP LTE、高級LTE、CDMA2000、IEEE 802.xx等。本文描述的實施方式可以任何順序或組合來應用。 Although the embodiments are disclosed with reference to 3GPP High Speed Packet Access (HSPA) related control channels and data channels, it should be noted that the embodiments are not limited to 3GPP HSPA, but can be applied to existing or future developments. Any wireless communication technology, including but not limited to 3GPP LTE, LTE-Advanced, CDMA2000, IEEE 802.xx, and the like. The embodiments described herein can be applied in any order or combination.
參考第2圖，示例的無線通信系統100包括多個WTRU 110、節點B 120、控制無線電網路控制器(CRNC)130、服務無線電網路控制器(SRNC)140和核心網路150。節點B 120和CRNC 130一起被稱為通用陸地無線電存取網路(UTRAN)。 Referring to FIG. 2, an exemplary wireless communication system 100 includes a plurality of WTRUs 110, a Node B 120, a Control Radio Network Controller (CRNC) 130, a Serving Radio Network Controller (SRNC) 140, and a core network 150. Node B 120 and CRNC 130 together are referred to as Universal Terrestrial Radio Access Network (UTRAN).
如第2圖所示，WTRU 110與節點B 120通信，其經由Iub介面與CRNC 130和SRNC 140通信，CRNC 130和SRNC 140經由Iur介面連接。儘管在第2圖中顯示了三個WTRU 110、一個節點B 120、一個CRNC 130和一個 SRNC 140，但是在無線通信系統100中可以包括無線和有線設備的任何組合。 As shown in FIG. 2, WTRU 110 is in communication with Node B 120, which communicates with CRNC 130 and SRNC 140 via an Iub interface, and CRNC 130 and SRNC 140 are connected via an Iur interface. Although three WTRUs 110, one Node B 120, one CRNC 130, and one are shown in FIG. SRNC 140, but may include any combination of wireless and wired devices in wireless communication system 100.
第3圖為第2圖中的無線通信系統100的WTRU 110和節點B 120的功能方塊圖。如第3圖所示，根據任何一個實施方式，WTRU 110與節點B 120通信，並且兩者都被配置用於為多個載波操作確定RLC PDU尺寸並產生RLC PDU。 3 is a functional block diagram of WTRU 110 and Node B 120 of wireless communication system 100 in FIG. As shown in FIG. 3, in accordance with any of the embodiments, WTRU 110 is in communication with Node B 120 and both are configured to determine RLC PDU sizes for a plurality of carrier operations and to generate RLC PDUs.
除了在典型的WTRU中可以找到的元件之外，示例的WTRU 110還包括處理器115、接收器116、發射器117、記憶體118和天線119。WTRU 110(即處理器115、接收器116和發射器117)被配置為經由多載波在上行鏈路及/或下行鏈路上傳輸及/或接收。記憶體118被提供用來儲存包括作業系統、應用程式等在內的軟體。根據任何一個實施方式，處理器115可以被配置用於為多個載波操作單獨地或者與軟體相關聯地執行RLC PDU尺寸的確定和RLC PDU的產生。接收器116和發射器117與處理器115通信。天線119與接收器116和發射器117通信以便於無線資料的傳輸和接收。 The exemplary WTRU 110 includes a processor 115, a receiver 116, a transmitter 117, a memory 118, and an antenna 119 in addition to elements that can be found in a typical WTRU. The WTRU 110 (i.e., the processor 115, the receiver 116, and the transmitter 117) is configured to transmit and/or receive on the uplink and/or downlink via multiple carriers. The memory 118 is provided to store software including operating systems, applications, and the like. In accordance with any of the embodiments, the processor 115 can be configured to perform the determination of the RLC PDU size and the generation of the RLC PDU, either alone or in association with the software, for multiple carrier operations. Receiver 116 and transmitter 117 are in communication with processor 115. Antenna 119 is in communication with receiver 116 and transmitter 117 to facilitate transmission and reception of wireless data.
除了在典型的節點B中能夠找到的組件之外，示例的節點B 120還包括處理器125、接收器126、發射器127、記憶體128和天線129。節點B 120(即處理器125、接收器126和發射器127)被配置為經由多個載波在下行鏈路及/或上行鏈路上傳輸及/或接收。根據任何一個實施方式，處理器125可以被配置用於為多個載波操作確定RLC PDU尺寸和產生RLC PDU。接收器126和發射器127與處理器125通信。天線129與接收器126和發射器127通信以便於無線資料的傳輸和接收。 The example Node B 120 includes a processor 125, a receiver 126, a transmitter 127, a memory 128, and an antenna 129 in addition to the components that can be found in a typical Node B. Node B 120 (i.e., processor 125, receiver 126, and transmitter 127) is configured to transmit and/or receive on the downlink and/or uplink via multiple carriers. According to any of the embodiments, the processor 125 may be configured to determine an RLC PDU size and generate an RLC PDU for a plurality of carrier operations. Receiver 126 and transmitter 127 are in communication with processor 125. Antenna 129 is in communication with receiver 126 and transmitter 127 to facilitate transmission and reception of wireless data.
根據一個實施方式，WTRU(即WTRU的RLC實體)可以被配置為所有被啟動的載波選擇一個RLC PDU 尺寸，(當考慮標頭時，等效為RLC PDU資料欄位尺寸)，並且在WTRU有資料可用於傳輸的情況下預先產生用於目前及/或之後TTI的RLC PDU。 According to one embodiment, a WTRU (ie, a WTRU's RLC entity) may be configured to select one RLC PDU for all activated carriers. Size, (equivalent to the RLC PDU data field size when considering the header), and pre-generate RLC PDUs for current and/or subsequent TTIs if the WTRU has data available for transmission.
WTRU可以被配置為選擇RLC PDU的資料欄位的尺寸，由此用於任何載波而將被多工到MAC PDU的每個RLC PDU與由載波間的可應用目前授權最小值給定的允許傳輸的最大資料量匹配。例如，在兩個載波(例如，主載波和副載波)被啟動的情況下，RLC PDU的資料欄位的尺寸可以被選擇使得每一個被多工到MAC PDU(例如，MAC-i PDU)的RLC PDU匹配以下的最小值：在目前的TTI在主上行鏈路頻率上可應用的目前授權所允許傳輸的最大資料量；和在目前的TTI在副上行鏈路頻率上可應用的目前授權所允許傳輸的最大資料量。 The WTRU may be configured to select the size of the data field of the RLC PDU, thereby for each carrier to be multiplexed to each RLC PDU of the MAC PDU and the allowed transmission given by the applicable current authorized minimum value between the carriers. The maximum amount of data matched. For example, where two carriers (eg, primary carrier and subcarrier) are activated, the size of the data field of the RLC PDU can be selected such that each is multiplexed to a MAC PDU (eg, a MAC-i PDU) The RLC PDU matches the minimum value of the maximum amount of data allowed for the current grant applicable to the current TTI on the primary uplink frequency; and the current authorized office that is applicable on the secondary uplink frequency at the current TTI The maximum amount of data that is allowed to be transferred.
授權(即用於增強型專用頻道(E-DCH)傳輸的授權)可以針對每個載波被配置。該授權可以為被排程授權及/或非排程授權。對於被排程授權，WTRU保持基於從網路接收的資訊來進行更新的服務授權。服務授權直接指定在相應的TTI中在E-DCH專用實體資料頻道(E-DPDCH)上WTRU可以使用的最大功率。服務授權由E-DCH絕對授權頻道(E-AGCH)和E-DCH相對授權頻道(E-RGCH)更新。網路還提供非排程授權給WTRU以配置在TTI期間在E-DCH上WTRU可以傳輸的最大塊尺寸。 Authorization (ie, authorization for Enhanced Private Channel (E-DCH) transmission) can be configured for each carrier. The authorization may be scheduled authorization and/or non-scheduled authorization. For scheduled grants, the WTRU maintains a service grant for updating based on information received from the network. The service grant directly specifies the maximum power that the WTRU can use on the E-DCH Dedicated Physical Data Channel (E-DPDCH) in the corresponding TTI. The service authorization is updated by the E-DCH Absolute Authorization Channel (E-AGCH) and the E-DCH Relative Authorization Channel (E-RGCH). The network also provides a non-scheduled grant to the WTRU to configure the maximum block size that the WTRU can transmit on the E-DCH during the TTI.
“可應用授權”根據邏輯頻道來對應被排程授權或者非排程授權。如果邏輯頻道屬於被排程的MAC-d流，則用於邏輯頻道的可應用授權對應於服務授權(即被排程授權)。如果邏輯頻道屬於非排程的MAC-d流，則用於邏輯頻道的可應用授權對應於為相應的MAC-d流而配置的非排程授權。 "Applicable Authorization" corresponds to scheduled authorization or non-scheduled authorization based on logical channels. If the logical channel belongs to the scheduled MAC-d flow, the applicable authorization for the logical channel corresponds to the service authorization (ie, scheduled authorization). If the logical channel belongs to a non-scheduled MAC-d flow, the applicable grant for the logical channel corresponds to the non-scheduled grant configured for the corresponding MAC-d flow.
對於雙載波操作，非排程的流可以被允許在主上行鏈路頻率上而不被允許在副上行鏈路頻率上。在這種情況下，如果邏輯頻道屬於非排程的MAC-d流，那麼RLC PDU資料欄位尺寸可以被確定，由此每個將被多工到MAC PDU(即MAC-i PDU)中的RLC PDU，與用於相應的MAC-d流的非排程授權允許傳輸的資料量匹配。因此，如果在副頻率中不允許非排程的流，RLC PDU資料欄位尺寸可以被選擇，由此其與以下最小值匹配：在目前的TTI期間在主上行鏈路頻率上可應用的目前授權(被排程或非排程)允許傳輸的最大資料量；和在目前的TTI期間在副上行鏈路頻率(被排程)可應用的目前授權允許傳輸的最大資料量。 For dual carrier operation, non-scheduled streams may be allowed on the primary uplink frequency and not allowed on the secondary uplink frequency. In this case, if the logical channel belongs to a non-scheduled MAC-d flow, the RLC PDU data field size can be determined, whereby each will be multiplexed into a MAC PDU (ie, a MAC-i PDU). The RLC PDU matches the amount of data that is allowed to be transmitted by the non-scheduled grant for the corresponding MAC-d flow. Therefore, if a non-scheduled stream is not allowed in the secondary frequency, the RLC PDU data field size can be selected, whereby it matches the minimum value: the current applicable on the primary uplink frequency during the current TTI The maximum amount of data allowed to be transferred (scheduled or unscheduled); and the maximum amount of data that the current grant is allowed to transmit at the sub-uplink frequency (scheduled) during the current TTI.
因此，如果WTRU不被允許在副上行鏈路頻率上傳輸非排程資料，則基於用於主上行鏈路頻率的可應用授權來確定用於屬於非排程的MAC-d流的邏輯頻道的RLC PDU尺寸。 Thus, if the WTRU is not allowed to transmit non-scheduled data on the secondary uplink frequency, then the logical channel for the non-scheduled MAC-d flow is determined based on the applicable grant for the primary uplink frequency. RLC PDU size.
當確定RLC PDU尺寸或RLC PDU的資料欄位的尺寸時，RLC PDU的尺寸不會超過被配置的最大RLC PDU尺寸，並且不會小於被配置的最小RLC PDU尺寸，除非在緩衝器中沒有足夠可用的資料。 When determining the size of the RLC PDU size or the data field of the RLC PDU, the size of the RLC PDU does not exceed the configured maximum RLC PDU size and is not less than the configured minimum RLC PDU size unless there is not enough in the buffer Available information.
對於單載波操作，例如，如果在用於特定邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或等於在目前TTI期間可應用的目前授權(被排程或非排程)允許傳輸的最大資料量的四(4)倍，則RLC PDU可以被預先產生。根據一個實施方式，對於多載波操作，在用於特定邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或者等於在目前TTI期間針對該載波的可應用的目前授權所允許傳輸的最大資料量中的最小值的4×N倍情況 下，WTRU可以被配置為預先產生RLC PDU，其中N為啟動的載波的數量。例如，在雙載波操作中，N相應地為2，因此如果在用於邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或等於在目前TTI期間針對該載波的可應用的目前授權所允許傳輸的最大資料量中的最小值的8倍(即4×2)，則WTRU被允許預先產生RLC PDU。對於其他實例，除了4N，任何被配置載波的數量的整數倍都可以被配置。 For single carrier operation, for example, if the amount of data in an outstanding pre-generated RLC PDU for a particular logical channel is less than or equal to the current grant (scheduled or unscheduled) that is applicable during the current TTI, the transmission is allowed. Four (4) times the maximum amount of data, the RLC PDU can be pre-generated. According to one embodiment, for multi-carrier operation, the amount of data in the outstanding pre-generated RLC PDU for a particular logical channel is less than or equal to the maximum allowed transmission of the applicable current authorization for that carrier during the current TTI 4×N times the minimum value of the data amount The WTRU may be configured to pre-generate RLC PDUs, where N is the number of enabled carriers. For example, in dual carrier operation, N is correspondingly 2, so if the amount of data in the outstanding pre-generated RLC PDU for the logical channel is less than or equal to the applicable current authorization for the carrier during the current TTI The WTRU is allowed to pre-generate RLC PDUs, which is 8 times the minimum of the maximum amount of data allowed to be transmitted (ie, 4x2). For other examples, in addition to 4N, an integer multiple of the number of configured carriers can be configured.
第4圖為根據一個實施方式的用於產生RLC PDU的示例過程400的流程圖。WTRU(即WTRU的RLC實體)選擇邏輯頻道(步驟402)。例如，可以根據E-DCH傳輸格式組合(E-TFC)選擇規則來選擇邏輯頻道。WTRU可以被配置為確定是否存在可用於被選擇的邏輯頻道傳輸的資料(步驟404)。可選擇地，這可以是超過臨界值的足夠資料量的確定。可選擇地，WTRU也可以被配置為確定對於所選擇的邏輯頻道是否允許RLC PDU的預先產生。如果沒有資料可用，及/或可選擇地，如果對於該邏輯頻道不允許RLC PDU的預先產生，那麼確定是否有另一個邏輯頻道用於處理(步驟414)。在這種情況下，過程400或者分支出回到步驟402以用於另一個邏輯頻道選擇或者基於在步驟414中的確定而結束。 FIG. 4 is a flow diagram of an example process 400 for generating an RLC PDU, in accordance with an embodiment. The WTRU (i.e., the WTRU's RLC entity) selects a logical channel (step 402). For example, a logical channel can be selected according to an E-DCH Transport Format Combination (E-TFC) selection rule. The WTRU may be configured to determine if there is material available for transmission by the selected logical channel (step 404). Alternatively, this can be a determination of a sufficient amount of data that exceeds a threshold. Alternatively, the WTRU may also be configured to determine whether pre-generation of RLC PDUs is allowed for the selected logical channel. If no data is available, and/or alternatively, if pre-generation of the RLC PDU is not allowed for the logical channel, then it is determined if there is another logical channel for processing (step 414). In this case, process 400 branches out to step 402 for another logical channel selection or ends based on the determination in step 414.
如果存在可用於邏輯頻道的資料(可選擇地，對於被選擇的邏輯頻道允許RLC PDU的預先產生)，在該實例中的WTRU確定在之前的TTI中用於被選擇的邏輯頻道的未完成的預先產生的RLC PDU中的資料量是否超過被配置的臨界值(步驟406)。例如，被配置的臨界值可以為在目前TTI期間針對載波的可應用的目前授權所允許傳輸的最大資料量中的最小值的4×N倍，其中N為被啟動的載波的數目。如果被配置的臨界值被超過，則在該示例中 的WTRU不允許預先產生用於該邏輯頻道的更多的RLC PDU，過程400分出到步驟414來確定是否存在另一個邏輯頻道。如果被配置的臨界值沒有被超過，則WTRU被允許為邏輯頻道預先產生RLC PDU。可替代地，WTRU被配置為不會檢查其是否被允許預先產生RLC PDU(即步驟406被略過)，而是可以直接繼續剩下的步驟(即408、410、412)以確定RLC PDU尺寸和它可以創建多少RLC PDU。在RLC PDU不能被預先產生的情況下，WTRU可以預先產生的RLC PDU的數目將等於1。 If there is material available for the logical channel (optionally, pre-generation of the RLC PDU is allowed for the selected logical channel), the WTRU in this example determines the incomplete of the selected logical channel in the previous TTI Whether the amount of data in the pre-generated RLC PDU exceeds the configured threshold (step 406). For example, the configured threshold may be 4 x N times the minimum of the maximum amount of data allowed to be transmitted for the applicable current grant for the carrier during the current TTI, where N is the number of carriers being activated. If the configured threshold is exceeded, in this example The WTRU does not allow for the generation of more RLC PDUs for the logical channel, and process 400 branches to step 414 to determine if there is another logical channel. If the configured threshold is not exceeded, the WTRU is allowed to pre-generate the RLC PDU for the logical channel. Alternatively, the WTRU is configured not to check if it is allowed to pre-generate RLC PDUs (ie, step 406 is skipped), but may instead continue with the remaining steps (ie, 408, 410, 412) to determine the RLC PDU size. And how many RLC PDUs it can create. In case the RLC PDU cannot be pre-generated, the number of RLC PDUs that the WTRU may pre-generate will be equal to one.
在預先產生RLC PDU中，在該示例中WTRU確定邏輯頻道的類型(即被排程或非排程)，並確定在目前TTI期間在每一個載波上可應用的目前授權所允許傳輸的最大資料量(步驟408)。如果邏輯頻道屬於被排程的MAC流，那麼可應用的授權為服務授權，如果邏輯頻道屬於非排程的MAC流，那麼可應用的授權為被配置用於相應的MAC-d流的非排程授權。可替代地或另外地，最大資料量將基於在每個載波上的功率(最大剩餘功率、WTRU功率餘量(headroom)等)被計算，這在下文中詳細解釋。 In pre-generated RLC PDUs, in this example the WTRU determines the type of logical channel (ie, scheduled or non-scheduled) and determines the maximum amount of data allowed for the current grant applicable on each carrier during the current TTI. Amount (step 408). If the logical channel belongs to the scheduled MAC flow, then the applicable authorization is the service authorization. If the logical channel belongs to the non-scheduled MAC flow, the applicable authorization is the non-plated configured for the corresponding MAC-d flow. Authorization. Alternatively or additionally, the maximum amount of data will be calculated based on the power on each carrier (maximum remaining power, WTRU power headroom, etc.), which is explained in detail below.
在該示例中的WTRU選擇RLC PDU的資料欄位的尺寸(等效為RLC PDU的尺寸)，使得被多工到MAC PDU(例如MAC-PDU)的每一個RLC PDU與在目前TTI期間(被排程或非排程)在被啟動的載波中允許傳輸的最大資料量中的最小值匹配(步驟410)。 The WTRU in this example selects the size of the data field of the RLC PDU (equivalent to the size of the RLC PDU) such that each RLC PDU that is multiplexed to a MAC PDU (eg, MAC-PDU) is during the current TTI (being The scheduled or non-scheduled) matches the minimum of the maximum amount of data allowed to be transmitted in the activated carrier (step 410).
WTRU基於所選擇的RLC PDU資料欄位尺寸(例如XRLC PDU size)為所選擇的邏輯頻道產生用於之後的TTI的至少一個RLC PDU(步驟412)。在一個示例中的WTRU確定資料量(即RLC PDU的數目)以為邏輯頻道預先產生如下。在之前TTI中預先產生的RLC PDU的數量稱為Kpre-generated。在沒有RLC PDU被預先產生 (Kmax，allowed data)的情況下，被允許預先產生的最大資料量可以被確定為4×N×XRLC PDU size，其中N為被啟動的載波的數目，XRLC PDU size為在目前TTI期間在所有的載波上可應用的目前授權(被排程或非排程)所允許傳輸的最大資料量中的最小值。可替代地，根據本文中描述任何一個實施方式，XRLC PDU size可以對應於WTRU根據確定而能夠創建的RLC PDU尺寸。 The WTRU generates at least one RLC PDU for the subsequent TTI for the selected logical channel based on the selected RLC PDU data field size (eg, XRLC PDU size) (step 412). The WTRU in one example determines the amount of data (i.e., the number of RLC PDUs) to be pre-generated for the logical channel as follows. The number of pre-generated RLC PDUs in the previous TTI is called Kpre-generated. Pre-generated without RLC PDU In the case of (Kmax, allowed data), the maximum amount of data allowed to be generated in advance can be determined as 4 × N × XRLC PDU size, where N is the number of carriers activated, and XRLC PDU size is at all during the current TTI The minimum of the maximum amount of data allowed to be transmitted by the current authorization (scheduled or unscheduled) applicable to the carrier. Alternatively, according to any of the embodiments described herein, the XRLC PDU size may correspond to an RLC PDU size that the WTRU can create based on the determination.
WTRU可以被配置用於為邏輯頻道預先產生RLC PDU達到剩餘的可用空間(Kremaining allowed)，其通過下式計算：Kremaining allowed=min(Kavailable data,(Kmax,allowed data-Kpre-generated))，等式(1) The WTRU may be configured to pre-generate the RLC PDU for the logical channel to the remaining free space (Kremaining allowed), which is calculated by: Kremaining allowed = min (Kavailable allowed = min (Kamax, allowed data - Kpre-generated)), etc. Formula 1)
其中Kavailable data為用於邏輯頻道的傳輸的可用資料量。可選擇地，WTRU可以被配置為在考慮在目前TTI中將被傳輸的資料之後，計算Kremaining allowed。更具體地，如果資料在目前TTI中能夠或者將被傳輸，則WTRU可被配置為從Kpre-generated減去該資料的數量。如果在E-TFC選擇程序和MAC-i/is PDU創建已經完成以後，RLC PDU創建被執行，那麼Kpre-generated包含已經被預先產生的位元或位元組的剩餘數目。 Where Kavailable data is the amount of data available for the transmission of the logical channel. Alternatively, the WTRU may be configured to calculate Kremaining allowed after considering the material to be transmitted in the current TTI. More specifically, if the data can or will be transmitted in the current TTI, the WTRU may be configured to subtract the amount of the data from Kpre-generated. If the RLC PDU creation is performed after the E-TFC selection procedure and the MAC-i/is PDU creation have been completed, then Kpre-generated contains the remaining number of bits or bytes that have been previously generated.
WTRU可被配置為如下式計算為邏輯頻道預先產生的最大RLC PDU的數目(NMAX RLC PDU)：NMAX RLC PDUS=[Kremaining allowed/XRLC PDU size]， 等式(2) The WTRU may be configured to calculate the number of maximum RLC PDUs pre-generated by the logical channel (NMAX RLC PDU) as follows: NMAX RLC PDUS = [Kremaining allowed / XRLC PDU size], Equation (2)
其中[x]為給出小於或等於x的最大整數的底函數(floor function)，NMAX RLC PDU為非負整數。這可導致低於WTRU產生的RLC PDU。 Where [x] is the floor function giving the largest integer less than or equal to x, and the NMAX RLC PDU is a non-negative integer. This can result in lower RLC PDUs generated by the WTRU.
可替代地，WTRU可以被配置為如下式計算為邏輯頻道產生的RLC PDU的最大數目，： NMAX RLC PDUS=[Kremaining allowed/XRLC PDU size]， 等式(3) Alternatively, the WTRU may be configured to calculate the maximum number of RLC PDUs generated for the logical channel as follows: NMAX RLC PDUS=[Kremaining allowed/XRLC PDU size], equation (3)
其中[x]為給出大於或者等於x的最小整數的上限函數(ceiling function)。這可導致產生稍多點的RLC PDU。 Where [x] is the ceiling function giving the smallest integer greater than or equal to x. This can result in a slightly more pointy RLC PDU.
可替代地，WTRU可以被配置為產生尺寸為XRLC PDU size的N個完整的RLC PDU，其中N等於[Kremaining allowed/XRLC PDU size]，和產生另外的RLC PDU，其尺寸等於min(最小RLC PDU尺寸，mod(Kremaining allowed，XRLC PDU size))。 Alternatively, the WTRU may be configured to generate N complete RLC PDUs of size XRLC PDU size, where N is equal to [Kremaining allowed/XRLC PDU size], and generate additional RLC PDUs of a size equal to min (minimum RLC PDU) Size, mod (Kremaining allowed, XRLC PDU size)).
WTRU可被配置為當在RLC實體中資料變得可用時預先產生RLC PDU，而不管正在被多工或被允許在給定的TTI上被傳輸的邏輯頻道。例如，即使WTRU不被允許在給定的TTI內傳輸被排程或非排程傳輸，WTRU仍可以根據文中描述的實施方式來預先產生RLC PDU。 The WTRU may be configured to pre-generate RLC PDUs when data becomes available in the RLC entity, regardless of the logical channel being multiplexed or allowed to be transmitted on a given TTI. For example, even if the WTRU is not allowed to transmit scheduled or unscheduled transmissions within a given TTI, the WTRU may pre-generate RLC PDUs in accordance with the embodiments described herein.
可替代地，WTRU可被配置為當資料在RLC實體中變得可用並且WTRU被允許在給定的TTI內為邏輯頻道傳輸該類型的資料時為特定邏輯頻道預先產生RLC PDU。例如，如果資料變得可用於被配置為非排程的MAC-d流的邏輯頻道，但是WTRU不被允許在給定的TTI內傳輸非排程傳輸，則WTRU可以被配置為不預先產生RLC PDU。可替代地，這個規則可以被應用於被排程的流。可替代地，對於非排程的流，如果用於相應的MAC-d流的非排程授權為半靜態的，那麼WTRU可以被配置為在來自較高層的資料到達之後預先產生RLC PDU。 Alternatively, the WTRU may be configured to pre-generate RLC PDUs for a particular logical channel when the data becomes available in the RLC entity and the WTRU is allowed to transmit the type of material for the logical channel within a given TTI. For example, if the data becomes available for a logical channel configured as a non-scheduled MAC-d flow, but the WTRU is not allowed to transmit non-scheduled transmissions within a given TTI, the WTRU may be configured not to pre-generate RLC PDU. Alternatively, this rule can be applied to the scheduled stream. Alternatively, for a non-scheduled stream, if the non-scheduled grant for the corresponding MAC-d flow is semi-static, the WTRU may be configured to pre-generate the RLC PDU after the arrival of data from the higher layer.
可替代地，當資料可用並且WTRU被允許根據基於MAC-d流的優先順序的多工限制在給定的TTI內為該邏輯頻道傳輸資料時，WTRU可被配置為預先產生RLC PDU。 Alternatively, the WTRU may be configured to pre-generate RLC PDUs when the data is available and the WTRU is allowed to transmit data for the logical channel within a given TTI according to a MAC-d flow based prioritized multiplex limit.
可替代地，當資料可用且WTRU已經能在給定的TTI(例如，在該TTI內來自該邏輯頻道的資料將被傳輸)內多工資料時，WTRU可被配置為預先產生RLC PDU。 Alternatively, the WTRU may be configured to pre-generate RLC PDUs when data is available and the WTRU has been able to multiplex data within a given TTI (eg, data from the logical channel within the TTI will be transmitted).
在以上的實施方式中，WTRU可以被配置為選擇RLC PDU的資料欄位的尺寸(即等效地為RLC PDU的尺寸)，使得被多工到MAC PDU(例如MAC-i PDU)的每一個RLC PDU匹配在目前TTI期間(被排程或非排程)在所有載波上允許傳輸的最大資料量中的最小值。 In the above embodiments, the WTRU may be configured to select the size of the data field of the RLC PDU (ie, equivalently the size of the RLC PDU) such that each of the multiplexed to MAC PDUs (eg, MAC-i PDUs) The RLC PDU matches the minimum of the maximum amount of data allowed to be transmitted on all carriers during the current TTI (scheduled or unscheduled).
可替代地，WTRU可被配置為選擇RLC PDU的資料欄位的尺寸，由此針對任何載波的被多工到MAC PDU(例如MAC-i/is PDU)的每一個RLC PDU匹配針對載波的可應用的目前授權的最大值給定的允許傳輸的最大資料量。 Alternatively, the WTRU may be configured to select the size of the data field of the RLC PDU, whereby each RLC PDU for any carrier that is multiplexed to a MAC PDU (eg, MAC-i/is PDU) matches the carrier for the carrier. The maximum amount of data allowed to be transmitted given the maximum authorized value of the application.
可替代地，WTRU可被配置為選擇RLC PDU的資料欄位的尺寸，由此針對任何載波的被多工到MAC PDU(例如MAC-i/is PDU)的每一個RLC PDU匹配針對載波的可應用的目前授權的總和所給定的允許傳輸的最大資料量。在目前授權為表現為功率比方面的被排程授權的情況下，該總和可以通過首先對功率比(在線性單元上)求和，然後確定可以以求和的功率比被傳輸的資料量來計算。可替代地，總和可以藉由首先確定以獨立的授權被傳輸的資料量，然後對這些資料量求和來計算。 Alternatively, the WTRU may be configured to select the size of the data field of the RLC PDU, whereby each RLC PDU for any carrier that is multiplexed to a MAC PDU (eg, MAC-i/is PDU) matches the carrier for the carrier. The maximum amount of data allowed to be transmitted given by the sum of the current authorizations of the application. In the case of currently authorized scheduling grants in terms of power ratios, the sum can be summed by first summing the power ratios (on the linear unit) and then determining the amount of data that can be transmitted at the summed power ratio. Calculation. Alternatively, the sum can be calculated by first determining the amount of data to be transmitted with independent authorization and then summing these amounts of data.
可替代地，WTRU可被配置為選擇RLC PDU的資料欄位的尺寸，由此針對任何載波的被多工到MAC PDU(例如MAC-i/is PDU)的每一個RLC PDU匹配所有載波的所有可應用的授權的平均值所給定的允許傳輸的最大資料量。在目前授權為表現為功率比方面的被排程授權的情況下，平均值可以藉由首先計算功率比(在線性單元上)的平均值，然後確定可以以平均的功率比來被傳輸的 資料量來計算。可替代地，平均值可以通過首先確定可以以獨立的授權被傳輸的資料量然後計算這些資料量的平均值來計算。 Alternatively, the WTRU may be configured to select the size of the data field of the RLC PDU, whereby all RLC PDUs for any carrier that are multiplexed to MAC PDUs (eg, MAC-i/is PDUs) match all of the carriers The maximum amount of data allowed to be transmitted given by the average of the applicable authorizations. In the case of currently authorized scheduling grants in terms of power ratios, the average value can be determined by first calculating the average of the power ratios (on the linear unit) and then determining that it can be transmitted at the average power ratio. The amount of data is calculated. Alternatively, the average value can be calculated by first determining the amount of data that can be transmitted with independent authorization and then calculating the average of these data amounts.
可替代地，WTRU可被配置為選擇RLC PDU的資料欄位的尺寸，由此針對任何載波的被多工到MAC PDU(例如MAC-i/is PDU)的每一個RLC PDU匹配在預定數目的TTI(或在無限脈衝回應(IIR)濾波器被使用的情況下有效TTI的數目)內由針對所有載波的可應用的授權允許的最大資料量的流動平均值(running average)。 Alternatively, the WTRU may be configured to select the size of the data field of the RLC PDU, whereby each RLC PDU for any carrier that is multiplexed to a MAC PDU (eg, MAC-i/is PDU) matches a predetermined number of The running average of the maximum amount of data allowed by the applicable grant for all carriers within the TTI (or the number of valid TTIs in the case where an Infinite Impulse Response (IIR) filter is used).
根據另一個實施方式，WTRU可被配置為創建多個RLC PDU集合，其中在每一個集合中的RLC PDU的資料欄位尺寸被選擇為與在每個載波中可應用的授權所允許傳輸的最大資料量匹配。例如，如果WTRU被配置為在兩個載波上通信，則WTRU可被配置用於為該兩個載波產生兩個RLC PDU集合，其中在每個集合中的RLC PDU資料欄位尺寸被選擇為與在相應載波中的可應用的授權允許傳輸的最大資料量匹配。 According to another embodiment, the WTRU may be configured to create a plurality of RLC PDU sets, wherein the data field size of the RLC PDUs in each set is selected to be the maximum allowed for transmission with the applicable grants in each carrier The amount of data matches. For example, if the WTRU is configured to communicate on two carriers, the WTRU may be configured to generate two RLC PDU sets for the two carriers, wherein the RLC PDU data field size in each set is selected to be The applicable authorization in the corresponding carrier allows the maximum amount of data to be transmitted to match.
在任何TTI，WTRU可被配置為由功率而不是授權來限制。因此，在確定RLC PDU資料欄位的尺寸(即在目前TTI內對每一個載波允許傳輸的最大資料量)時，除了考慮授權外，可選擇地，WTRU還可被配置用於考慮在載波上可用的功率。 At any TTI, the WTRU may be configured to be limited by power rather than authorization. Therefore, in determining the size of the RLC PDU data field (ie, the maximum amount of data allowed to be transmitted for each carrier within the current TTI), in addition to considering authorization, the WTRU may alternatively be configured for consideration on the carrier. Available power.
在每一個載波被配置或被分配單獨的最大功率的情況下，WTRU可被配置為，例如，計算被允許用於在每一個載波上的E-DCH傳輸的最大剩餘功率。被允許用於每一個載波的E-DCH傳輸的最大剩餘功率是藉由從用於載波的被分配的最大功率減去控制頻道(即專用實體控制頻道(DPCCH)和高速專用實體控制頻道(HS-DPCCH))所需的功率來計算的功率。WTRU可被配置為基於在目前 TTI內在每個載波上可應用的目前授權和被允許用於E-DCH傳輸的最大剩餘功率來計算可被傳輸的最大資料量。然後，WTRU可被配置用於為RLC PDU預先產生選擇RLC PDU的資料欄位尺寸使得被多工到MAC PDU(例如MAC-i/is PDU)的每一個RLC PDU與在所有載波上的最大資料量中的最小值匹配。 In the case where each carrier is configured or assigned a separate maximum power, the WTRU may be configured, for example, to calculate the maximum remaining power allowed for E-DCH transmissions on each carrier. The maximum remaining power allowed for E-DCH transmission for each carrier is by subtracting the control channel (ie, Dedicated Physical Control Channel (DPCCH) and High Speed Dedicated Entity Control Channel (HS) from the allocated maximum power for the carrier. -DPCCH)) The power required to calculate the power. The WTRU may be configured to be based on the current The current grant available on each carrier within the TTI and the maximum remaining power allowed for E-DCH transmission to calculate the maximum amount of data that can be transmitted. The WTRU may then be configured to pre-generate the data field size of the selected RLC PDU for the RLC PDU such that each RLC PDU that is multiplexed to a MAC PDU (eg, MAC-i/is PDU) and the largest data on all carriers The minimum value in the quantity matches.
被允許用於E-DCH傳輸的最大剩餘功率可以根據專用於多胞元操作的E-DCH傳輸格式組合(E-TFC)限制機制來被計算。當基於標準化的剩餘功率確定可以在給定的載波上傳輸的最大資料量時，WTRU可被配置為基於與給定的邏輯頻道對應的MAC-d流的功率偏移量來確定被支援的E-TFC，或可替代地，基於更高優先順序的MAC-d流的功率偏移量、或用於該類型的流的最高優先順序的MAC-d流(例如被排程或非排程)的功率偏移量來確定被支援的E-TFC。WTRU可被配置為還考慮相應的邏輯頻道的混合自動重複請求(HARQ)偏移量。 The maximum remaining power allowed for E-DCH transmission can be calculated according to an E-DCH Transport Format Combination (E-TFC) restriction mechanism dedicated to multi-cell operations. When determining the maximum amount of data that can be transmitted on a given carrier based on the normalized residual power, the WTRU may be configured to determine the supported E based on the power offset of the MAC-d flow corresponding to the given logical channel. -TFC, or alternatively, a power offset based on a higher priority MAC-d flow, or a highest priority MAC-d flow for that type of flow (eg, scheduled or non-scheduled) The power offset is used to determine the supported E-TFC. The WTRU may be configured to also consider a hybrid automatic repeat request (HARQ) offset for the corresponding logical channel.
在為所有的載波配置一個最大值功率以由所有載波共用的情況下，WTRU可被配置為在為非排程傳輸預先分配功率之後，基於在載波上的服務授權的比率來為每一個載波計算被允許用於E-DCH傳輸的最大剩餘功率。WTRU可被配置為假定針對每個載波的可應用剩餘功率可以被各自的載波使用。可替代地，WTRU可被配置為假定總的可用剩餘功率的一半可用於每一個載波。 In the case where all of the carriers are configured with one maximum power to be shared by all carriers, the WTRU may be configured to calculate for each carrier based on the ratio of service grants on the carrier after pre-allocating power for the non-scheduled transmissions. The maximum remaining power allowed for E-DCH transmission. The WTRU may be configured to assume that the applicable remaining power for each carrier may be used by the respective carrier. Alternatively, the WTRU may be configured to assume that half of the total available remaining power is available for each carrier.
例如，在雙載波操作中，WTRU可被配置為首先為非排程傳輸給一個(或兩個)載波預先分配功率，然後根據服務授權比(即在載波上的服務授權比率)為被排程傳輸劃分剩餘值。例如，如果不允許在副載波上進行非排程傳輸，那麼在主載波上被允許用於E-DCH傳輸的最大剩餘功率可以是為非排程傳輸預先分配的功率與為被排程 傳輸分配的功率的總和，這可以基於服務授權比和剩餘值來計算，該剩餘值藉由從為所有載波分配的最大功率中減去為非排程傳輸預先分配的功率與控制頻道(即DPCCH和HS-DPCCH)所需的功率來計算。在副載波上被允許用於E-DCH傳輸的最大剩餘功率可以是為被排程傳輸分配的功率，其可以基於服務授權比和剩餘值來計算，該剩餘值藉由從為所有的載波分配的最大功率中減去為非排程傳輸被預先分配的功率和控制頻道(即DPCCH和HS-DPCCH)所需的功率來計算。 For example, in dual carrier operation, the WTRU may be configured to pre-allocate power to one (or both) carriers for non-scheduled transmissions first, and then be scheduled according to a service grant ratio (ie, a service grant ratio on the carrier) The transmission divides the residual value. For example, if non-scheduled transmissions on subcarriers are not allowed, then the maximum remaining power allowed for E-DCH transmissions on the primary carrier may be pre-allocated power for unscheduled transmissions and is scheduled The sum of the powers allocated for transmission, which can be calculated based on the service grant ratio and the residual value, which is obtained by subtracting the pre-allocated power and control channel (ie DPCCH) for the non-scheduled transmission from the maximum power allocated for all carriers. And the power required by HS-DPCCH) is calculated. The maximum remaining power allowed for E-DCH transmission on the subcarriers may be the power allocated for the scheduled transmission, which may be calculated based on the service grant ratio and the residual value, which is allocated from all carriers The maximum power is subtracted from the power required for the unscheduled transmission of the pre-assigned power and control channels (ie, DPCCH and HS-DPCCH).
這些實施方式同樣地能應用到超過兩個載波的操作，由此用於每一個載波的標準化的剩餘功率可基於功率來確定在載波上能被傳輸的最大允許資料。 These embodiments are equally applicable to operations of more than two carriers, whereby the normalized residual power for each carrier can be based on power to determine the maximum allowed data that can be transmitted on the carrier.
WTRU可被配置為基於用於每一個載波的功率和授權來確定其可以傳輸的最大資料量Kmaxdata,x，其中x對應於載波數目。例如，對於每一個載波，基於被分配的功率和對該載波的E-TFC限制的最大資料量和基於用於該載波的服務授權的最大資料量被確定，且用於該載波的Kmaxdata,x為這兩者中的最小者。WTRU可被配置為將用於RLC PDU預先產生的RLC PDU的資料欄位的尺寸確定為所有的載波中的Kmaxdata,x的最小值。例如，如果兩個載波被啟動(x=1，2)，用於RLC PDU預先產生的RLC PDU尺寸(例如，XRLC PDU size)可被確定為Kmaxdata,1和Kmaxdata,2中的最小值。如上所述最大和最小被配置的RLC PDU值也可被考慮。 The WTRU may be configured to determine a maximum amount of data Kmaxdata,x that it may transmit based on the power and grant for each carrier, where x corresponds to the number of carriers. For example, for each carrier, the maximum amount of data based on the allocated power and the E-TFC limit for the carrier and the maximum amount of data based on the service grant for the carrier are determined, and Kmaxdata for the carrier, x The smallest of the two. The WTRU may be configured to determine the size of the data field of the RLC PDU pre-generated for the RLC PDU as the minimum value of Kmaxdata,x in all carriers. For example, if two carriers are enabled (x = 1, 2), the RLC PDU size (eg, XRLC PDU size) pre-generated for the RLC PDU may be determined as the minimum of Kmaxdata, 1 and Kmaxdata, 2. The maximum and minimum configured RLC PDU values as described above can also be considered.
功率偏移量或用來計算位元數目的HARQ的特性檔可根據以上描述的一個實施方式來確定。 The power offset or the profile of the HARQ used to calculate the number of bits may be determined in accordance with one embodiment described above.
根據另一個實施方式，WTRU可被配置為確定在目前TTI內在所有的載波上可應用的目前授權允許傳輸的最大資料量(即基於在所有載波上可應用的授權的最小 值(或最大值、總和或平均值))。然後WTRU確定在目前TTI內在所有的載波上剩餘功率允許傳輸的最大資料量。然後WRTU將需要被預先產生用於之後TTI的RLC PDU資料欄位的尺寸確定為基於在所有載波上可應用的授權而被計算的最大資料量和基於在所有載波上的剩餘功率而被計算的最大資料量中的最小值。 According to another embodiment, the WTRU may be configured to determine the maximum amount of data that the current grant is allowed to transmit on all carriers within the current TTI (ie, based on the minimum of grants applicable on all carriers) Value (or maximum, sum, or average)). The WTRU then determines the maximum amount of data that the remaining power is allowed to transmit on all carriers within the current TTI. The WRTU then determines the size of the RLC PDU data field that needs to be pre-generated for the subsequent TTI to be calculated based on the maximum amount of data that is calculated based on the applicable grants on all carriers and based on the remaining power on all carriers. The minimum of the maximum amount of data.
實施例 Example
1.一種為多載波操作產生RLC PDU的方法。 1. A method of generating RLC PDUs for multi-carrier operation.
2.如實施例1所述的方法，包括選擇邏輯頻道。 2. The method of embodiment 1 comprising selecting a logical channel.
3.如實施例2所述的方法，包括確定是否存在可用於邏輯頻道的資料。 3. The method of embodiment 2, comprising determining if there is material available for the logical channel.
4.如實施例2-3任一實施例所述的方法，包括為多個載波中的每個載波計算在目前TTI允許傳輸的最大資料量。 4. The method of any of embodiments 2-3, comprising calculating, for each of the plurality of carriers, a maximum amount of data allowed to be transmitted at the current TTI.
5.如實施例4所述的方法，包括為邏輯頻道選擇RLC PDU資料欄位尺寸，由此被多工到MAC PDU的每一個RLC PDU與為載波而計算的最大資料量中的最小值相匹配。 5. The method of embodiment 4, comprising selecting a RLC PDU data field size for the logical channel, thereby being multiplexed to a minimum of each RLC PDU of the MAC PDU and a maximum amount of data calculated for the carrier. match.
6.如實施例5所述的方法，包括基於被選擇的RLC PDU資料欄位尺寸產生用於之後的TTI的至少一個RLC PDU。 6. The method of embodiment 5, comprising generating at least one RLC PDU for a subsequent TTI based on the selected RLC PDU data field size.
7.如實施例4-6任一實施例所述的方法，其中基於在目前TTI針對每一個載波的可應用的目前授權來計算在每一個載波上能夠傳輸的最大資料量。 7. The method of any of embodiments 4-6 wherein the maximum amount of data that can be transmitted on each carrier is calculated based on the applicable current grant for each carrier at the current TTI.
8.如實施例6-7任一實施例所述的方法，其中在用於邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或者等於在目前TTI中針對載波的可應用的目前授權允許傳輸的最大資料量中的最小值的4N倍的情況 下，產生用於之後的TTI的RLC PDU，其中N為被啟動載波的數目。 8. The method of any of embodiments 6-7, wherein the amount of data in the outstanding pre-generated RLC PDU for the logical channel is less than or equal to the applicable current for the carrier in the current TTI 4N times the minimum value of the maximum amount of data allowed to be transferred Next, an RLC PDU for the following TTI is generated, where N is the number of enabled carriers.
9.如實施例7-8任一實施例所述的方法，在該邏輯頻道屬於非排程的MAC流的情況下該可應用的目前授權是非排程授權，在該邏輯頻道屬於被排程的MAC流的情況下該可應用的目前授權是服務授權。 9. The method of any one of embodiments 7-8, wherein the applicable current authorization is a non-scheduled grant in the case that the logical channel belongs to a non-scheduled MAC flow, and the logical channel belongs to the scheduled In the case of a MAC flow, the applicable current authorization is a service authorization.
10.如實施例9所述的方法，其中主載波和副載波被啟動。 10. The method of embodiment 9 wherein the primary carrier and the secondary carrier are activated.
11.如實施例10所述的方法，其中非排程的MAC流被允許在主載波上，被排程的MAC流被允許在主載波和副載波上。 11. The method of embodiment 10 wherein the non-scheduled MAC flows are allowed on the primary carrier and the scheduled MAC flows are allowed on the primary and secondary carriers.
12.如實施例11所述的方法，其中為邏輯頻道選擇RLC PDU資料欄位尺寸，使得被多工到MAC PDU的每一個RLC PDU與在目前TTI內在主載波上允許由可應用的目前被排程或非排程授權傳輸的最大資料量以及在目前TTI內在副載波上允許由可應用的目前被排程的授權傳輸的最大資料量中的最小值相匹配。 12. The method of embodiment 11 wherein the RLC PDU data field size is selected for the logical channel such that each RLC PDU that is multiplexed to the MAC PDU is allowed to be applied by the currently available on the primary carrier within the current TTI The maximum amount of data for scheduled or non-scheduled grant transmissions and the minimum of the maximum amount of data allowed to be transmitted by the currently scheduled scheduled grants on the subcarriers within the current TTI.
13.如實施例4-12任一實施例所述的方法，其中基於在每一個載波上可應用的目前授權和在每一個載波上被允許用於E-DCH傳輸的最大剩餘功率兩者來計算最大資料量。 13. The method of any of embodiments 4-12 wherein based on both the current grant applicable on each carrier and the maximum remaining power allowed for E-DCH transmission on each carrier. Calculate the maximum amount of data.
14.如實施例13所述的方法，其中被允許用於主載波的E-DCH傳輸的最大剩餘功率是為非排程傳輸預先分配的功率和基於載波的服務授權比分配的功率的總和，以及被允許用於副載波的E-DCH傳輸的最大剩餘功率為基於該載波的服務授權比而分配的功率。 14. The method of embodiment 13 wherein the maximum remaining power allowed for E-DCH transmission of the primary carrier is a sum of pre-allocated power for non-scheduled transmission and power allocated for carrier-based service grant ratio, And the maximum remaining power allowed for E-DCH transmission of the subcarrier is the power allocated based on the service grant ratio of the carrier.
15.一種為多載波傳輸產生靈活尺寸的RLC PDU的WTRU。 15. A WTRU that generates flexible sized RLC PDUs for multi-carrier transmission.
16.如實施例15所述的WTRU，包括收發器， 該收發器被配置用於經由多個載波進行傳輸或接收。 16. The WTRU as in embodiment 15 comprising a transceiver, The transceiver is configured to transmit or receive via multiple carriers.
17.如實施例16所述的WTRU，包括處理器，該處理器被配置用於選擇邏輯頻道。 17. The WTRU of embodiment 16 comprising a processor configured to select a logical channel.
18.如實施例17所述的WTRU，其中該處理器被配置用於確定是否存在可用於邏輯頻道的資料。 18. The WTRU of embodiment 17 wherein the processor is configured to determine if there is material available for the logical channel.
19.如實施例17-18任一實施例所述的WTRU，其中該處理器被配置用於為多個載波中的每個載波計算在目前TTI內允許被傳輸的最大數量。 19. The WTRU as in any one of embodiments 17-18, wherein the processor is configured to calculate, for each of the plurality of carriers, a maximum number of transmissions allowed within the current TTI.
20.如實施例19所述的WTRU，其中該處理器被配置用於為邏輯頻道選擇RLC PDU資料欄位尺寸由此被多工到MAC PDU的每一個RLC PDU與為載波而計算的最大資料量中的最小值相匹配，以及基於被選擇的RLC PDU資料欄位尺寸產生用於之後的TTI的至少一個RLC PDU。 20. The WTRU of embodiment 19, wherein the processor is configured to select an RLC PDU data field size for the logical channel thereby being multiplexed to each RLC PDU of the MAC PDU and a maximum data calculated for the carrier The minimum of the quantities is matched, and at least one RLC PDU for the following TTI is generated based on the selected RLC PDU data field size.
21.如實施例19-20任一實施例所述的WTRU，其中該處理器被配置為基於在目前TTI內針對每一個載波的可應用的目前授權來計算在每一個載波上能夠傳輸的最大資料量。 21. The WTRU as in any one of embodiments 19-20, wherein the processor is configured to calculate a maximum transmittable on each carrier based on an applicable current grant for each carrier within the current TTI The amount of data.
22.如實施例20-21任一實施例所述的WTRU，其中該處理器被配置為在用於特定邏輯頻道的未完成的預先產生的RLC PDU中的資料量小於或者等於在目前TTI中針對載波的可應用的目前授權允許傳輸的最大資料量中的最小值的4N倍的情況下產生用於之後的TTI的RLC PDU，其中N為被啟動載波的數目。 22. The WTRU as in any one of embodiments 20-21 wherein the processor is configured to have an amount of data in an outstanding pre-generated RLC PDU for a particular logical channel that is less than or equal to the current TTI The RLC PDU for the subsequent TTI is generated with the applicable current grant of the carrier allowing 4N times the minimum of the maximum amount of data transmitted, where N is the number of enabled carriers.
23.如實施例21-22任一實施例所述的WTRU，其中在該邏輯頻道屬於非排程的MAC流的情況下，該可應用的目前授權是非排程授權，在該邏輯頻道屬於被排程的MAC流的情況下，該可應用的目前授權是服務授權。 23. The WTRU as in any one of embodiments 21-22 wherein, in the case where the logical channel belongs to a non-scheduled MAC flow, the applicable current grant is a non-scheduled grant, and the logical channel belongs to In the case of a scheduled MAC flow, the applicable current authorization is a service authorization.
24 如實施例23所述的WTRU，其中主載波和副載波被啟動，且非排程的MAC流被允許在主載波上，被排程的MAC流被允許在主載波和副載波上。 The WTRU as in embodiment 23, wherein the primary carrier and the secondary carrier are enabled, and the unscheduled MAC flow is allowed on the primary carrier, and the scheduled MAC flow is allowed on the primary carrier and the secondary carrier.
25.如實施例24所述的WTRU，其中該處理器被配置為選擇用於邏輯頻道的RLC PDU資料欄位尺寸，使得被多工到MAC PDU的每一個RLC PDU與在目前TTI的主載波上允許由可應用的目前排程或非排程授權傳輸的最大資料量以及在目前TTI內在副載波上由可應用的目前排程的授權允許傳輸的最大資料量中的最小值相匹配。 25. The WTRU of embodiment 24, wherein the processor is configured to select an RLC PDU data field size for the logical channel such that each RLC PDU that is multiplexed to the MAC PDU and the primary carrier at the current TTI The maximum amount of data allowed to be transmitted by the applicable current scheduled or non-scheduled grants and the minimum of the maximum amount of data allowed to be transmitted by the applicable current scheduled grants on the subcarriers within the current TTI are matched.
26.如實施例21-25任一實施例所述的WTRU，其中基於在每一個載波上可應用的目前授權和在每一個載波上被允許用於E-DCH傳輸的最大剩餘功率兩者來計算最大資料量。 26. The WTRU as in any one of embodiments 21-25, wherein based on both current grants applicable on each carrier and maximum remaining power allowed for E-DCH transmission on each carrier Calculate the maximum amount of data.
27.如實施例26所述的WTRU，其中被允許用於主載波的E-DCH傳輸的最大剩餘功率是為非排程傳輸預先分配的功率和基於載波的服務授權比分配的功率的總和，以及被允許用於副載波的E-DCH傳輸的最大剩餘功率為基於該載波的服務授權比而分配的功率。 27. The WTRU of embodiment 26 wherein the maximum remaining power allowed for E-DCH transmission of the primary carrier is a sum of pre-allocated power for unscheduled transmission and power allocated for carrier-based service grant ratio, And the maximum remaining power allowed for E-DCH transmission of the subcarrier is the power allocated based on the service grant ratio of the carrier.
儘管特徵和元件通過特定的組合在上文中被描述，但是每一個特徵或元件可以被單獨使用而不需要其他特徵和元件或使用或不使用其他特徵和元件的各種組合。文中提出的方法或流程圖可以以結合在由通用電腦或處理器執行的電腦可讀儲存媒體中的電腦程式、軟體或韌體被執行。電腦可讀儲存媒體的實例包括唯讀記憶體(ROM)、隨機存取記憶體(RAM)、暫存器、快取記憶體、半導體記憶裝置、諸如內部硬碟和移動硬碟的磁性媒體、磁光媒體和諸如CD-ROM光碟和數位多功能光碟(DVD)的光學媒體。 Although the features and elements are described above in a particular combination, each of the features or elements can be used separately without the use of other features and elements or with or without the use of various combinations of other features and elements. The methods or flowcharts set forth herein may be performed in a computer program, software or firmware incorporated in a computer readable storage medium executed by a general purpose computer or processor. Examples of computer readable storage media include read only memory (ROM), random access memory (RAM), scratchpad, cache memory, semiconductor memory devices, magnetic media such as internal hard drives and removable hard disks, Magneto-optical media and optical media such as CD-ROM discs and digital versatile discs (DVDs).
合適的處理器包括，例如，通用處理器、專用處理器、傳統處理器、數位信號處理器(DSP)、多個微處理器、與DSP核心相關聯的一或多個微處理器、控制器、微控制器、專用積體電路(ASIC)、現場可編程閘陣列電路(FPGA)、其他任何類型的邏輯電路及/或狀態機。 Suitable processors include, for example, general purpose processors, special purpose processors, conventional processors, digital signal processors (DSPs), multiple microprocessors, one or more microprocessors associated with a DSP core, controllers , microcontroller, dedicated integrated circuit (ASIC), field programmable gate array circuit (FPGA), any other type of logic circuit and/or state machine.
與軟體相關聯的處理器可被用來實現在無線發射接收單元(WTRU)、使用者設備(UE)、終端、基地台、無線電網路控制器(RNC)或任何主機電腦中使用的射頻收發器。WTRU可被配置為與以硬體及/或軟體實施的模組結合使用，這些模組例如是照相機、視訊照相機模組、視訊電話、擴音器、振動裝置、揚聲器、麥克風、電視收發器、免持耳機、鍵盤、藍芽模組、調頻(FM)無線電單元、液晶顯示器(LCD)顯示單元、有機發光二極體(OLED)顯示單元、數位音樂播放器、媒體播放器、視訊遊戲播放器模組、網際網路瀏覽器及/或任何無線區域網路(WLAN)或超寬頻(UWB)模組。 A processor associated with the software can be used to implement radio frequency transceiving for use in a wireless transmit receive unit (WTRU), user equipment (UE), terminal, base station, radio network controller (RNC), or any host computer. Device. The WTRU may be configured to be used in conjunction with hardware and/or software implemented modules such as cameras, video camera modules, video phones, loudspeakers, vibration devices, speakers, microphones, television transceivers, Hands-free headset, keyboard, Bluetooth module, FM radio unit, liquid crystal display (LCD) display unit, organic light-emitting diode (OLED) display unit, digital music player, media player, video game player Modules, Internet browsers and/or any wireless local area network (WLAN) or ultra-wideband (UWB) modules.
400‧‧‧產生RLC PDU的示例過程 400‧‧‧Example process for generating RLC PDUs
WTRU‧‧‧無線發射/接收單元 WTRU‧‧‧Wireless Transmitter/Receiver Unit
RLC‧‧‧無線鏈結控制 RLC‧‧‧Wireless Link Control
PDU‧‧‧協議資料單元 PDU‧‧‧ Protocol Data Unit
TTI‧‧‧傳輸時間間隔 TTI‧‧‧ transmission time interval
MAC‧‧‧媒體存取控制 MAC‧‧‧Media Access Control
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